1. I. Ahmad:
Department of Gastroenterology and Hepatology, Shaikh Zayed Hospital, Lahore, Pakistan
2. A. A. Khan:
Department of Gastroenterology and Hepatology, Shaikh Zayed Hospital, Lahore, Pakistan
3. A. Alam:
Department of Gastroenterology and Hepatology, Shaikh Zayed Hospital, Lahore, Pakistan
4. A. K. Butt:
Department of Gastroenterology and Hepatology, Shaikh Zayed Hospital, Lahore, Pakistan
5. F. Shafqat:
Department of Gastroenterology and Hepatology, Shaikh Zayed Hospital, Lahore, Pakistan
6. W. H. Shah:
Department of Gastroenterology and Hepatology, Shaikh Zayed Hospital, Lahore, Pakistan
7. A. Alvi:
Department of Gastroenterology and Hepatology, Shaikh Zayed Hospital, Lahore, Pakistan
8. S. Sarwar:
Department of Gastroenterology and Hepatology, Shaikh Zayed Hospital, Lahore, Pakistan
9. A. Niazi:
Department of Gastroenterology and Hepatology, Shaikh Zayed Hospital, Lahore, Pakistan